228022865 has 8 divisors (see below), whose sum is σ = 312717120. Its totient is φ = 156358512.

The previous prime is 228022859. The next prime is 228022891. The reversal of 228022865 is 568220822.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 228022865 - 2⁸ = 228022609 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35), and also a Moran number because the ratio is a prime number: 6514939 = 228022865 / (2 + 2 + 8 + 0 + 2 + 2 + 8 + 6 + 5).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3257435 + ... + 3257504.

It is an arithmetic number, because the mean of its divisors is an integer number (39089640).

Almost surely, 2^228022865 is an apocalyptic number.

It is an amenable number.

228022865 is a deficient number, since it is larger than the sum of its proper divisors (84694255).

228022865 is an equidigital number, since it uses as much as digits as its factorization.

228022865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6514951.

The product of its (nonzero) digits is 30720, while the sum is 35.

The square root of 228022865 is about 15100.4259873687. The cubic root of 228022865 is about 610.9318955166.

The spelling of 228022865 in words is "two hundred twenty-eight million, twenty-two thousand, eight hundred sixty-five".